Cel DEVELOPMENT AND TESTING OF A MULTI COMPONENT BINDING MODEL OF POLLUTING IONS TO SOIL ORGANIC MATTER, TAKING INTO ACCOUNT SITE HETEROGENEITY AND ELECTROCHEMICAL EFFECTS. FOR THE PREDICTION OF THE BINDING OF INORGANIC POLLUTANTS TO DIFFERENT SOILS IT IS NECESSARY TO ESTABLISH FUNDAMENTAL RELATIONS THAT DESCRIBE THE BINDING BEHAVIOUR AS A FUNCTION OF ENVIRONMENTAL FACTORS SUCH AS PH, SALT CONTENT, CONCENTRATION COMPETITOR IONS AND AS A FUNCTION OF REACTIVE SOIL COMPONENTS SUCH AS SOIL ORGANIC MATTER, CLAY AND METAL-OXIDES. FOR CLAY AND METAL-OXIDES FUNDAMENTAL MODELS HAVE BEEN DEVELOPED AND THERE IS A REASONABLE UNDERSTANDING ON THE INTERACTION OF THESE SORBENTS WITH POLLUTING IONS. IN THE CASE OF SOIL ORGANIC MATTER SUCH INSIGHT IS STILL VERY LIMITED AND NO SATISFACTORY OR GENERALLY APPLICABLE MODELS EXIST. IN ORDER TO BE ABLE TO MODEL THE COMPETITIVE BINDING OF IONS OVER A WIDE RANGE OF RELEVANT CONDITIONS SUCCESSFULLY, IT IS ESSENTIAL TO DISCRIMINATE BETWEEN INTRINSIC SITE HETEROGENEITY AND SURFACE CHARGE EFFECTS ON THE BINDING BEHAVIOUR. IN PREVIOUS WORK EXPERIENCE HAS BEEN GAINED WITH MODELING COMPETITIVE BINDING OF IONS TO VARIABLY CHARGED HETEROGENEOUS METAL-OXIDES. BASED ON THIS ESPERIENCE AND EXTENSIVE LITERATURE RESEARCH A MULTI-COMPONENT BINDING MODEL FOR SOIL ORGANIC MATTER WILL BE DEVELOPED, TAKING SITE HETEROGENEITY AND ELECTROCHEMICAL ASPECTS INTO ACCOUNT. THE MODEL WILL FIRST BE TESTED USING LITERATURE DATA FOR FULVIC ACIDS, HUMIC ACIDS AND SYNTHETIC POLYELECTROLYTES. TO TEST THE MODEL THOROUGHLY FOR CONDITIONS RELEVANT IN THE SOIL SOLUTION AN EXTENSIVE DATA SET HAS TO BE OBTAINED BY CAREFULLY EXPERIMENTATION. Dziedzina nauki natural scienceschemical scienceselectrochemistry Program(-y) FP1-ENVPROT 4C - Multiannual research and development programmes (EEC) in the field of the environment - Protection of the environment -, 1986-1990 Temat(-y) Data not available Zaproszenie do składania wniosków Data not available System finansowania CSC - Cost-sharing contracts Koordynator WAGENINGEN UNIVERSITY Wkład UE Brak danych Adres Costerweg 50 WAGENINGEN Niderlandy Zobacz na mapie Linki Strona internetowa Opens in new window Koszt całkowity Brak danych Uczestnicy (1) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko NERC British Geological Survey Zjednoczone Królestwo Wkład UE Brak danych Adres Maclean Building Crowmarsh Gifford OX10 8BB Wallingford Zobacz na mapie Koszt całkowity Brak danych
